He has not been in action since he was defeated in the Wimbledon semi-finalsMilos Raonic in July.
The 17-time Grand Slam winner was advised to take rest and recover from the knee surgery.
He missed the Olympics and the remaining season this year.
Federer tweeted: "I know you haven’t heard much from me while I’ve been recovering. Thrilled to be returning to in Jan @hopmancup. Feeling healthy & ready!"
"As a special thanks to my fans who’ve been supporting me, on Thur 22nd @ 2pm Dubai , I'll broadcast my practice LIVE on Twitter & Periscope," he said.
Image: Wikimedia Commons
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